A) 400
B) 300
C) 200
D) 150
Correct Answer: C
Solution :
After 8 sec., the counting rate falls to \[\frac{100}{1600}=\frac{1}{16}={{\left( \frac{1}{2} \right)}^{4}}\]th Part; Time period \[=\frac{8}{4}\sec .=2\sec .\] "Therefore, after 6 seconds, the counting rate should be \[{{\left( \frac{1}{2} \right)}^{3}}\] th part of 1600, i.e. \[\frac{1}{8}\times 1600=200.\]You need to login to perform this action.
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